Integrated Access Solutions

The SpectraComm 5000 Series (SC 5000) serves as a central connection point to the network, providing high capacity wideband access to full and fractional T1 services. The SC 5000 consolidates multiple serial data streams into a single T1 high-speed stream for delivery to the network. As a result, users who currently require multiple digital or analog access lines can consolidate their bandwidth requirements over one or more T1 links, greatly reducing monthly access charges.

The SC 5000 supports a broad array of access technologies, including ISDN PRI, V.34 digital services, subrate and full rate DDS, and full or fractional T1.

Consolidation

Integrating your access channel grooming by means of the SC 5000 system permits the use of an economical high capacity T1 to replace up to 24 line-by-line terminations.

The basis of the SC 5000 system is the MS-2 shelf, SpectraComm Manager (SCM) and the SC 5001. The SCM provides the management and configuration interface and the SC 5001 Line Terminating Unit (LTU) terminates the T1 and provides a DSX-1 "cascade port" interface and a back plane interface for emulator cards. A 16-slot SpectraComm MS-2 Shelf supports up to four SC 5001 LTUs and up to 72 Data Ports.

System, Element and Routing Redundancy

A means of protection known as "diverse routing" permits redundancy at the carrier T1 and FT1 levels. When this method is used, the application deploys two SC 5001 LTUs, each terminating T1 services from separate paths, ensuring route diversity. In the event of a T1 failure, the network manager reconfigures all bandwidth assigned from the primary LTU to the backup LTU, utilizing the alternate T1's route. Remote data sets attached to alternate WAN ports are then activated, re-establishing complete data flow.

Integrated Access Cards

SpectraComm Manager (SCM)

SCM Key Features:

·  Provides SNMP management of local and remote network elements

·  Supports direct Ethernet LAN attachment (10BaseT, 10Base2)

·  Provides a modem port for dial back up

·  Extends SNMP management to legacy GDC products

·  RADIUS Security

The SCM is the shelf controller and network management interface to all SpectraComm access elements. It allows TCP/IP-based centralized management by acting as the SNMP agent for the chassis and as the management interface to multiple network elements, providing a cost-effective and comprehensive solution.

The SCM provides access to the entire network for data set configuration, alarms, performance monitoring, diagnostic testing, and restoral. One SCM and its corresponding IP address can control up to 31 network elements in a high density SpectraComm Shelf. Remote companion units across the network from corresponding SpectraComm rackmount units can also be controlled by the same SCM.

SpectraComm 5001 (SC 5001) LTU

SC 5001 Key Features:

·  T1 channel distribution to individual SpectraComm DSEs

·  Up to 24 individual channels per LTU

·  Drop and Insert Port (DSX-1 Interface)

·  Full 1.536 Mbps "payload"

·  Supports a mixture of analog and digital applications

·  Support dial-up and private line services

Each SpectraComm 5001 incorporates a powerful intelligent CSU (channel service unit), supporting D4 and ESF framing as well as AMI and B8ZS line coding. The SC 5001 LTU provides flexible, network-managed access to T1 and fractional T1 services. Each LTU supports a single T1 line for network interconnection and a DSX-1 cascade port for "drop and insert" applications.

Up to four independent SpectraComm 5000 subsystems (multiple DSEs with their own LTU for T1 connection) can co-exist in a single shelf configuration. Each LTU distributes bandwidth over the following interfaces: Network T1, drop and insert DSX-1, and the local backplane busses found in the SpectraComm shelf. The LTU divides the T1 payload for each logical interface and configures channels in single or bundled fashion.

SpectraComm 5553 (SC 5553) DSE

SC 5553 Key Features:

·  Support for fractional (N x 56/64 kbps) T1 channels from 56 kbps to 1.536 Mbps

·  Extends SNMP management for remote NMS 553s

The SpectraComm 5553 delivers N x 64/56 to full T1 service functions over a Fractional T1 line, providing channels to the SC 5001 LTU. The SC 5553 also extends SNMP management to legacy GDC products.

SpectraComm 5520 (SC 5520) DSE

SC 5520 Key Features:

·  Network Managed DDS/GDS DSU

NEBS Testing in progress

·  Supports all DDS data rates — 2.4-19.2 kbps, 56/64 kbps, 64 kbps clear channel

·  Compatible with full OCU-DP functions (located at CO)

·  Interoperates with standard DDS DSUs

·  SNMP management for remote SC 521A

·  Supports Data Rate Adaption

GDC's SpectraComm 5520 delivers 2.4 to 64 K data over standard DDS and clear channel services. The SC 5520 supplies independent channels to the SpectraComm integrated access system. The network-managed SC 5520 DSE serves as a master for both point-to-point and multipoint networks, enabling users to mix and match different circuit topologies in the same chassis. The SC 5520 is fully interoperable with legacy GDC managed data sets and extends its SNMP management to them.

SpectraComm 5034 (SC 5034) DSE

Key SC 5034 Features:

·  Two high performance V.34 modems per card

·  Supports both analog (up to 33.6 kbps) and Digital (64 kbps) calls

·  Effective throughput of 128 kbps

·  Enhanced Security Features:

  - Patented Steadfast Security^®

  - Password, dial back and roving dial back security

·  Auto-detection of analog and digital calls

·  Supports caller ID (with PRI)

The SpectraComm 5034 DSE communicates with remote V.34 analog modems up to 33.6 kbps over dial-up or 2-wire private lines. It incorporates the digital equivalent of two V.34 modems, which can function as one 128 kbps or two 64 kbps ISDN terminal adapters utilizing two separate DS0 time slots of a T1/PRI circuit. In addition, the SC 5034 supports advanced compression techniques for analog connections that achieve an effective throughput of 128 kbps asynchronous.

SpectraComm 5506 OCU-DP (SC 5506) & SpectraComm 5516 DSO-DP (SC 5516)

SC 5506 and SC 5516 Key Features:

·  High Density Intra-Office OCU-DP (SC 5506)

·  High Density Intra-Office DSO-DP with DS0A Signalling (SC 5516)

NEBS Testing in progress

·  Provides highly reliable SS7 Transport

·  Low Power

·  Highest Density --72 Data Ports in 4 Rack Units (4RU)

·  Centralized or Distributed Network Management via GDC TEAM^® and HP OpenView

Both the SC 5506 and the SC 5516 High Density cards answer the call for innovation. They were designed with today's scalability and density requirements in mind and with the flexibility required by Service Provider craft personnel.

Both cards support six data ports. Four of the cards accommodate 24 DS0s or a full T1 connection. Front panel LED status indicators allow confirmation of local configuration and status.

The SC 5506 and the SC 5516 support 56K rates for legacy D4 channel banks as well as 64K rates for clear channel T1 applications. The user can mix 56 and 64 K rates on the same card

SpectraComm PRI

The SpectraComm PRI (SC PRI) card performs the necessary signaling to support Primary Rate ISDN (PRI). When the PRI card is installed in conjunction with a SC 5001, it performs signaling on channel 24 of the T1/PRI line. Channels 1 through 23 are available for user traffic and can be distributed to SC 5034 DSE cards.

Multiple ISDN PRI lines can be provisioned, by arrangement with the service provider. The PRI card supports D channel signaling for two PRI lines connected to individual SC 5001 LTUs. All 24 channels of the second PRI line are available to carry user traffic for a total of 47 channels.

SpectraComm Alarm Card

The SpectraComm Alarm Card allows the user to extend alarm monitoring capabilities. The Alarm Card provides contacts to activate local and remote customer alarm systems, local and remote indication of alarms in a system, and separate cutoff controls for local and remote systems.

Introduction | Shelves and Enclosures | Integrated Access Solutions | Line-by-Line Solutions | Management and Security | SpectraComm Modems and CSU/DSUs At A Glance | General Specifications | Integrated Access Specifications | Line-by-Line Specifications | Modem Specifications | Product Literature